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California Emissions Rise in 2012 on Gas-Fired Power Output

Greenhouse-gas emissions from power generators, oil refineries and other plants in California climbed in 2012 as a nuclear plant shutdown and low hydropower supplies increased the state’s reliance on natural gas.

Power-plant releases rose 35 percent to 41.6 million metric tons last year, according to data posted today on the state Air Resources Board’s website. Total emissions were 437.8 million metric tons, up from 429.3 million in 2011. Edison International shut the San Onofre nuclear power plant in Southern California in January 2012, and the state that year faced one of the lowest snowpack levels on record.